MIL-B-913/6
BEARING, BALL, ANNULAR, FOR INSTRUMENTS AND PRECISION ROTATING COMPONENTS, DEEP GROOVE, FLANGED, CHROMIUM-ALLOY STEEL, ABEC 7P (METRIC)
BEARING, BALL, ANNULAR, FOR INSTRUMENTS AND PRECISION ROTATING COMPONENTS, DEEP GROOVE, FLANGED, CHROMIUM-ALLOY STEEL, ABEC 7P (METRIC)